15 电气 郄慧敏 vb 作业 循环程序计算10个随机数的和

1 打开桌面上的vb软件。

2 在窗口中建立一个commandbutton，双击此窗口，在弹出的窗口中输入以下内容：

1  Private Sub Command1_Click()
Cls
Dim n As Integer
Dim s As Integer
Dim a(10) As Integer

n = 1
While n <= 10
a(n) = Int(Rnd * 1000)
n = n + 1
Wend
n = 1
While n <= 10
Print a(n)
n = n + 1
Wend

s = 0
n = 1
While n <= 10
s = s + a(n)
n = n + 1
Wend

Print s




End Sub

2   Private Sub Command1_Click()
Dim i As Integer
Dim sum As Integer
Dim a As Integer

Do
Randomize
a = Int(Rnd * 1000)
sum = sum + a
i = i + 1
Loop Until i > 10
MsgBox "10个随机数得和:" & sum


End Sub

3   Private Sub Command1_Click()
Dim i As Integer
Dim sum As Integer
Dim a As Integer

Do
Randomize
a = Int(Rnd * 1000)
sum = sum + a
i = i + 1
Loop while i <= 10
MsgBox "10个随机数得和:" & sum


End Sub

4   Private Sub Command1_Click()
Dim i As Integer
Dim sum As Integer
Dim a As Integer

i = 1
Do While i <= 10
Randomize
a = Int(Rnd * 1000)
sum = sum + a
i = i + 1
Loop
MsgBox "10个随机数得和:" & sum


End Sub

5   Private Sub Command1_Click()
Dim i As Integer
Dim sum As Integer
Dim a As Integer

i = 1
Do Until i > 10
Randomize
a = Int(Rnd * 1000)
sum = sum + a
i = i + 1
Loop
MsgBox "10个随机数得和:" & sum


End Sub

6   Private Sub Command1_Click()
Cls
Print f(10)


End Sub
Private Function f(x As Integer) As Long
If x = 1 Then
f = x
Else
f = x + f(x - 1)
End If

End Function

7 Private Sub Command1_Click()
Dim sum As Integer
Dim i As Integer
Dim a As Integer
sum = 0
For i = 1 To 10
Randomize
a = Int(1000 * Rnd)
sum = sum + a
Next
MsgBox "10个随机数得和:" & sum


End Sub

8  Private Sub Command1_Click()
Cls

Dim n As Integer
Dim s As Integer
Dim a(10) As Integer

n = 1
While n <= 10
a(n) = Int(Rnd * 1000)
n = n + 1
Wend
n = 1
While n <= 10
Print a(n)
n = n + 1
Wend

s = 0
n = 1

For Each t In a
s = s + t
Next



Print s

End Sub

3 点击运行程序，就会出现结果